Here’s a useful tool for the kit, a digital angle gauge/protractor. These use a silicon sensor to show the number of degrees the unit is out of level. Magnets are provided in the base, so the tool can attach to any ferrous surface. Power is provided by a single AAA
The Eberspacher heaters can be controlled with a single switch, but it’s more convenient to have some temperature control & the option of a timer. Above is an ex-BT 701 series controller, with built in 7-day programmer. Being an ex-BT van version though, it’ll only switch the heater on for
Here’s a quick look at one of the now surplus cards from my old networking system, a MiniPCI Wireless interface card. This is an older generation card, one of the first with Wireless N support on 2.4GHz. Network PHY & firmware EEPROM. Power supply stuff is over to the left.
Continue readingAlpha Networks WMP-N06SA MiniPCI Wireless N Card
Here’s a new addition to the network, mainly to replace the ancient Cisco Catalyst 3500 XL 100MB switch I’ve been using for many years, until I can find a decently priced second hand commercial gigabit switch. Here’s the switch with some network connections on test. So far it’s very stable
I recently posted about a small analog SWR/Power meter I got from eBay, and figured it needed some improvement. After some web searching I located a project by ON7EQ, an Arduino sketch to read SWR & RF power from any SWR bridge. The Arduino code is on the original author’s
Having two separate water tanks on nb Tanya Louise, with individual pumps, meant that monitoring water levels in tanks & keeping them topped up without emptying & having to reprime pumps every time was a hassle. To this end I have designed & built this device, to monitor water usage
This is an old cordless landline phone, with dead handset batteries. Here’s the handset with the back removed. Shown is the radio TX/RX board, underneath is the keyboard PCB with the speaker & mic. All the FM radio tuning coils are visible & a LT450GW electromechanical filter. Radio PCB removed
This is an old USB 1.1 hub that was recently retired from service on some servers. Top of the unit visible here. Bottom label shows that this is a model F5U021 hub, a rather old unit. PCB is here removed from the casing, Indicator LEDs along the bottom edge of
Here is a cheap chinese made flash drive given out for free by Westlaw UK. Capacity 512MB Here is the PCB removed from the casing, USB connector on the left, followed by the clock crystal for the flash controller, a CBM2092, which is a Chipsbank part. 512MB flash memory IC,
This is the Current Cost CC128 Real Time Power Meter. Shown here is the display unit, British Gas issued these free to some customers. This unit measures current power draw in Watts, cost of power currently being used (requires unit price to be set), overall kWh usage over the past